Skip to content
CSLB #723684·24/7 emergency service
Aqua Flow Plumbing

San Jose · Almaden Valley

San Jose Plumber Thirty years, and most of the streets in south San Jose.

We are a family business, working out of our shop off Almaden Expressway. When you call, you get Dave, the owner, and he is the one who shows up.

Most of what we do is the unglamorous middle of the trade: a water heater that quit overnight, a sewer lateral full of roots, galvanized pipe from 1954 that finally gave up behind a wall.

CSLB #723684 · Open 24 hours, 7 days a week

Dave of Aqua Flow Plumbing soldering a copper line at a water heater, torch lit, in a San Jose garage
Dave, sweating a copper joint at a water heater. Almaden Valley.

On the record

Anyone can say “licensed and insured.” This is the part you can check.

4years

Nextdoor Neighborhood Favorite

Voted a Neighborhood Favorite in 2021, 2023, 2024 and 2025 by the people on the streets we work on.

30+years

On the tools in the South Bay

Three decades of San Jose houses, from 1920s Craftsmans near the Rose Garden to slab-built ranches in Blossom Valley.

723684CSLB license

Licensed in California

Our contractor license number. You can look it up yourself with the California Contractors State License Board.

Family-owned and operated in San Jose. More about us, or call (408) 891-4388.

Free quote

Tell us what it is doing.

The more specific you can be, the better the number we can give you over the phone. Banging pipes when the washer shuts off is a different job from a toilet that runs at night, and we can usually tell which one you have before we drive out.

If it turns out to be something you can fix yourself in ten minutes, we will say so and you will not get a bill.

Or skip the form and call (408) 891-4388

What we do

Plumbing services across San Jose and the South Bay.

Drain & Sewer in San Jose

Drains are the bulk of what we do. A single slow sink is usually a small job; a main line that backs up at the same time every year is a sewer lateral with roots in it, and those are different problems with different answers. We clear lines, jet them when the walls need scouring rather than a hole punched through, and put a camera down before recommending anything expensive. More on drain & sewer in San Jose.

Water Heaters in San Jose

San Jose water is hard, and hard water is what kills tanks. Sediment settles on the bottom, the burner has to fire through it, and that is the rumbling people describe on the phone. We repair what is worth repairing, replace what is not, and tell you plainly which one you have, even when the answer is that you do not need a new tank yet. More on water heaters in San Jose.

Repiping & Water Lines in San Jose

Anything carrying water under pressure, from the meter to the fixture. Houses here built before about 1960 still have galvanized steel that rusts closed from the inside; slab-built homes from the sixties and seventies hide their copper in the concrete. We find leaks before opening anything, and reroute overhead far more often than we break a slab. More on repiping & water lines in San Jose.

Gas Lines & Fixtures in San Jose

Gas work needs a licensed plumber. We size lines for the load they actually carry and pressure-test them before anything is covered up. Alongside that sits the everyday fixture work: a tap that will not stop dripping, a toilet running at night, a shower valve that has given up. Small jobs, but they are most of what a house actually needs. More on gas lines & fixtures in San Jose.

Every service

Residential and light commercial plumbing, across the South Bay.

Drain CleaningWater HeatersLeak Detection & RepairSewer & Main LinesFixtures & FaucetsEmergency PlumbingWhole-House RepipingGas Line ServicesWater Pressure & ValvesTrenchless Sewer PipingUnderground Water MainsObsolete Pipe Sizes & FabricationLight Commercial & IndustrialHydro JettingSewer Camera InspectionGarbage Disposal Repair & InstallationWater Heater RepairWater Heater ReplacementTankless Water Heater InstallationSlab Leak Detection & RepairPressure Regulator ReplacementShut-Off Valve ReplacementToilet Repair & InstallationFaucet Repair & InstallationShower & Tub Valve Repair

Recent work

Jobs from around San Jose.

All our own photos, from our own jobs. Some of them are ugly, because that is what the inside of a fifty-year-old drain looks like.

A new sewer cleanout tee and riser set into an open trench in San Jose clay soil, ready to be backfilled
New cleanout tee set in the trench before backfill.
A badly corroded cast iron drain pipe split open inside a wall cavity, scale built up along the break
Cast iron drain split along the seam. Scale had been building for decades.
New copper lines and a shut-off valve strapped inside an opened stud wall during a whole-house repipe
New copper and a shut-off strapped into open framing, mid-repipe.
A gas water heater on a raised stand in a San Jose garage, with new copper supply lines run along the wall
Water heater on a raised stand with new copper run to it.
New copper riser with a hose bib and shut-off feeding a bank of irrigation valves beside a San Jose house
Copper riser, hose bib and shut-off feeding an irrigation manifold.
New copper lines run along the ceiling of a laundry room above the washer and dryer
Copper run along a laundry ceiling on a whole-house repipe.
A narrow trench dug along a landscaped yard to replace an underground water main, garden hose running alongside
Trench for a water service replacement, kept narrow to save the planting.
A wall-mounted tankless water heater with new copper supply lines on the exterior of a San Jose home
Exterior tankless install with new copper on the wall.
An Aqua Flow plumber checking the gas meter and service line at the side of a San Jose house
Checking the gas service at the meter before running a new line.
A cracked sewer line exposed in a trench above, and the same trench filled with groundwater during the repair below
A failed sewer lateral, and the same trench once groundwater found it.

About

You deal with us directly, and that is on purpose.

We have been doing this for more than thirty years, and after that many South Bay houses, we have usually met whatever yours is doing before. We are a family business, and we have stayed small by choice.

We live here too. Our kids went to school here. If we do a bad job on El Paseo we hear about it at the grocery store, which is a stronger quality-control system than any corporate warranty.

We are not the cheapest and we do not pretend to be. What you get instead is somebody who will tell you straight whether a thing needs replacing or whether it has another five years in it.

Talk to Dave
The Aqua Flow Plumbing family team in company shirts in front of their work van in San Jose
The family, and the van.

Current offers

Three things worth asking about.

$0Phone Consultation

Describe the problem and get honest advice from us, licensed plumbers, before we ever roll a truck. If it is a simple fix you can do yourself, we will tell you.

Claim Offer
$250 OffWater Heater Installation

Mention this offer when you book a tank or tankless water heater replacement. Includes haul-away of your old unit. Cannot be combined with other offers.

Claim Offer
$100Drain Cleaning

A slow or clogged drain cleared for $100. Mention this offer when you book.

Claim Offer

Aqua Flow Care Plan

Most floods start with a five-dollar part.

A supply line to a toilet costs almost nothing and holds back sixty PSI all day long. When one lets go while you are at work, the part is still five dollars and the floor is not. The Care Plan is an annual look at the things that fail like that.

  • Annual whole-home plumbing inspection
  • Water heater flush and safety check
  • Priority scheduling when you call
  • 10% off any repair, all year
  • Written condition report for your records
Ask About the Care Plan
Close-up of copper supply lines and a recirculation pump mounted on a garage wall
Recirculation pump and copper at a garage water heater.

Service areas

Based off Almaden Expressway, which makes Almaden the fast one.

From our shop we can be in Almaden Valley in a few minutes and most of San Jose inside half an hour. The houses change a lot across that distance: a 1920s Craftsman near the Rose Garden has almost nothing in common with a slab-on-grade ranch in Blossom Valley, and they fail in different ways.

Not on the list? Call anyway. If we can get to you, we will tell you; if we cannot, we will say that instead of wasting your afternoon.

(408) 891-4388

San Jose neighborhoods

Nearby cities

All service areas →

Where we are

6359 El Paseo Dr, San Jose, CA 95120 · (408) 891-4388

Reviews

Read them at the source.

We do not retype reviews onto our own website, because anybody can type anything. These load straight from Google and Yelp, exactly as our customers wrote them.

Worked with us? Tell somebody.

Reviews are how a small family shop gets found by the next neighbor. If we did right by you, a couple of sentences helps more than you would think.

Burst pipe or a backup right now?

We take emergency calls around the clock, seven days a week. Call at any hour and you get Dave, not an answering service reading off a script.

If water is actively coming in, shut the main off before you call. It is usually at the front of the house near the meter, or on the wall of the garage. We will talk you through it if you cannot find it.

(408) 891-4388

Talk to the plumber, not a call center.

We take emergency calls around the clock, seven days a week. Call at any hour and you get Dave, not an answering service reading off a script.

Call (408) 891-4388Free Quote